中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
机构
采集方式
内容类型
发表日期
学科主题
筛选

浏览/检索结果: 共6条,第1-6条 帮助

条数/页: 排序方式:
Telescope alignment based on the structured lighting of collimated laser beam bundles 会议论文  OAI收割
Montréal, Québec, Canada, 2022-8-29
作者:  
Li ZY(李正阳);  Jiang X(姜鑫);  Han ZJ(韩子健);  Yuan XY(袁祥岩)
  |  收藏  |  浏览/下载:32/0  |  提交时间:2023/03/22
Computation of misalignment and primary mirror astigmatism figure error of two-mirror telescopes 期刊论文  OAI收割
Journal of Astronomical Telescopes Instruments and Systems, 2018, 卷号: 4, 期号: 1, 页码: 10
作者:  
Gu, Z. Y.;  Wang, Y.;  Ju, G. H.;  Yan, C. X.
  |  收藏  |  浏览/下载:152/0  |  提交时间:2019/09/17
Alignment algorithm for three-mirror anastigmatic telescopes based on nodal aberration theory 期刊论文  OAI收割
Journal of Modern Optics, 2018, 卷号: 65, 期号: 16, 页码: 1910-1919
作者:  
Xing, Z. C.;  Hong, Y. F.;  Zhang, X. B.;  Zhang, B.
  |  收藏  |  浏览/下载:18/0  |  提交时间:2019/09/17
Training to improve contrast sensitivity in amblyopia: correction of high-order aberrations 期刊论文  OAI收割
SCIENTIFIC REPORTS, 2016, 卷号: 6
作者:  
Liao, Meng;  Zhao, Haoxing;  Liu, Longqian;  Li, Qian;  Dai, Yun
  |  收藏  |  浏览/下载:25/0  |  提交时间:2018/06/14
A new method for comparing Zernike circular polynomials with Zernike annular polynomials in annular pupils (EI CONFERENCE) 会议论文  OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
Jing S.; Dongmei M.
收藏  |  浏览/下载:25/0  |  提交时间:2013/03/25
To compare the difference between Zernike annular polynomial and Zernike circular polynomial  an approximate mathematic relationship between Zernike annular polynomial coefficients and SEIDEL coefficients is proposed. A new method is applied in comparing experiment. For real interferometric data of annular wave front  the SEIDEL aberration calculated in different ways is removed from the original wave front. Residual astigmatism aberration in annular polynomial way is close to zero  but defocus and sphere aberration are 0.002709  -0.00182. The residual SEIDEL using annular polynomial is least. Data used in comparison shows that Zernike annular polynomial is more accurate and meaningful for the decomposition of aberrations and the calculation of Seidel aberrations in annular pupil. The calculation in astigmatism aberration is most accurate and those in defocus and sphere aberration are least accurate  when the first 9 terms are used in approximate solving SEIDEL. More coefficients are needed to obtain the real SEIDEL. 2010 IEEE.  
Design and tolerance analysis of compensator for high order aspheric surface testing (EI CONFERENCE) 会议论文  OAI收割
2009 International Conference on Optical Instruments and Technology - Optoelectronic Measurement Technology and Systems, October 19, 2009 - October 22, 2009, Shanghai, China
作者:  
Chen X.;  Liu W.;  Chen X.;  Chen X.
收藏  |  浏览/下载:29/0  |  提交时间:2013/03/25
High accuracy is required in surface testing of 90nm nodal point lithography projecting lens. By comparing various aspheric surface testing methods  the structure layout of the compensator is a meniscus positive lens combined with a Plano-convex positive lens. The design results indicate that: primary and high order aberrations are balanced well  we adopt Offner null compensator to test the aspheric surface in the point diffraction interferometer at last. In this paper  MTF exceeds diffraction limit  an Offner compensator is presented on the base of the third order aberration theory to test concave aspheric surface  root-mean-square (RMS) of wave front error /167. The F-number of the system can achieve F/1.64. By the analysis of the process of aspheric surface testing with the designed system  the optical construction parameters of which is determined by introducing equal-quantities spherical aberration to compensate all orders of aspheric coefficients. The field of view of the system is 0.02  a loosen distribution of the tolerance was presented based on the accuracy of measuring apparatus. 2009 SPIE.